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17 Cards in this Set
- Front
- Back
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Coloring of the skin
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Melanin, dermal circulation, and carotene
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Dermis
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Mostly CT, blood vessels, extracellular space, glands, nerves, and sensory receptors
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2 layers of Dermis
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Papillary layer
Reticular layer |
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Papilary layer
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From dermal papillae, composed of loose CT, supports upper epidermis, has epidermal ridges that forms finger prints
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Dermal papillae
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Gives name to papillary layer, contains blood vessels that pushes up to epidermis
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Reticular layer
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Dense irregular CT, deeper and thicker dermal layer, endures stress from all angles
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Hypodermal layer
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Subcutaneous layer, loaded with adipose tissue, store nutrient, maintains body temperature
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Hair
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Another name for “pili”, found 25% on the scalp and 75% all over body, protection from harsh temperature
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Arrector pili
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Hair muscle, contracts and generates heat causing gosebumps
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3 types of glands found in the skin
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Sebaceous (oil) gland, Sweat (sudoriferous) gland, Ceruminous gland
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Sebaceous (oil) gland
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Holocrine secretion, secretes sebum (oil), not found in palms and soles, not active until puberty, cause clog up pores that leads to infection on teenage faces
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Sebum
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Oils hair, lubricates skin, forms oily film that retards water loss, produces lysozymes
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Lysozymes
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Antibiotic that destroys bacteria on the skin surface
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Sweat (sudoriferous) gland
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Regulate body temperature, can be merocrine or apocrine
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Merocrine sweat gland
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“Eccrine”, distributed all over body, controls body temperature
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Apocrine sweat gland
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Found in axillary and genital areas; do not control body temperature, secreted during sexual activity, viscous and odorous
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Ceruminous gland
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Produces “cerumin” or ear wax, only found in the external auditory canal
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